70986993948 has 192 divisors, whose sum is σ = 205545733120. Its totient is φ = 21043908864.

The previous prime is 70986993919. The next prime is 70986993983. The reversal of 70986993948 is 84939968907.

70986993948 is a `hidden beast` number, since 70 + 9 + 86 + 99 + 394 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5344011 + ... + 5357277.

Almost surely, 2^70986993948 is an apocalyptic number.

70986993948 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70986993948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102772866560).

70986993948 is an abundant number, since it is smaller than the sum of its proper divisors (134558739172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70986993948 is a wasteful number, since it uses less digits than its factorization.

70986993948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433 (or 13425 counting only the distinct ones).

The product of its (nonzero) digits is 211631616, while the sum is 72.

The spelling of 70986993948 in words is "seventy billion, nine hundred eighty-six million, nine hundred ninety-three thousand, nine hundred forty-eight".